Astro Info
   GPL astronomy program with color support developed on Unix.
   http://astroinfo.sourceforge.net/

Coldsync
   Command-line synchronization software for Palm and Visor.
   http://www.ooblick.com/software/coldsync/

CryptoPadSlicer
   Conduit for the cryptographic MemoPad replacement CryptoPad application for the Palm.
   http://www.kybs.de/boris/software.shtml

Java Pilot Desktop
   Platform-independent desktop enables communication and data interchange with Palms.
   http://www.ctag.de/projects/jpd/index.html

JustInTime
   Works with the pilot-link to synchronize the time between Unix desktop and Palm. J-Pilot plugin also available.
   http://www.klawitter.de/palm/justintime.html

PalmAMP for XMMS
   XMMS plugin to work with the PalmAMP remote control program for WinAMP.
   http://student.cosy.sbg.ac.at/~dent/apps/palmamp/

Pilot-Link
   Command-line tools for connecting to a Palm to sync, add, delete, move, copy, and manipulate Palm data.
   http://www.gnu-designs.com/pilot-link/

Pyrite
   A Python library which provides high-level object-oriented access to Palm handhelds and their data.
   http://www.pyrite.org/

Syncal
   Syncal reads a current ical calendar file, an archived ical calendar file from the last time syncal was run, and a Palm device DateBook database and reconciles them.
   http://hopf.math.northwestern.edu/syncal/

pi-address
   X11 based address manager for Palm.
   http://me.in-berlin.de/~miwie/pia/

pilot2pine
   Converts Palm address book to Pine format.
   http://www.palmopensource.com/software/#pilot2pine